# ZeroBounce: what it does, who it is for and alternatives > ZeroBounce: Email validation and deliverability testing so campaigns reach inboxes. Free monthly checks to start. Source: https://learn.ynteractive.com/content/ai-tools/tool/zerobounce · Updated 2026-10-20 · Free from Stepthrough (https://learn.ynteractive.com) Updated October 20, 2026 · By [Robert Breen](https://learn.ynteractive.com/content/about) Email validation and deliverability testing so campaigns reach inboxes. Free monthly checks to start. [Email & inbox](https://learn.ynteractive.com/content/ai-tools/email-inbox) · Free plan Official site: [zerobounce.net](https://www.zerobounce.net) ## What ZeroBounce does ZeroBounce checks email lists one at a time, in bulk or through an API. It flags invalid, disposable and catch-all addresses and spam traps, and scores each valid contact on how likely a real person will see the message. Its deliverability tools test inbox placement, check SPF, DKIM and DMARC setup, and watch over 200 blacklists. ## Who ZeroBounce is for - Marketers - Sales reps - Email marketing managers - Small business owners ## Key features - Real-time and bulk email validation with an API - AI email scoring from 1 to 10 for valid and catch-all addresses - Email finder that verifies B2B addresses from a name and domain - Inbox placement tests and email warmup - SPF, DKIM, DMARC checks and monitoring of 200+ blacklists - 40+ integrations including HubSpot, Salesforce and Zapier ## Privacy and data States SOC 2 Type 2 and ISO 27001 certification and GDPR, CCPA and HIPAA compliance. Says uploaded files are deleted automatically after 30 days. Source: [ZeroBounce’s own page](https://www.zerobounce.net/security). Before you put client data in, check your company’s AI rules and the plan’s data settings. ## Alternatives to ZeroBounce Other AI email tools in the directory. For a fuller comparison, see [ZeroBounce alternatives](https://learn.ynteractive.com/content/ai-tools/alternatives/zerobounce). - [**no2bounce**](https://learn.ynteractive.com/content/ai-tools/tool/no2bounce) Free plan *Best for:* Cleaning lists for bad and risky addresses before a big send. Checks email lists for bad and risky addresses before a big send. Protects your sender reputation and bounce rate. - [**NeverBounce**](https://learn.ynteractive.com/content/ai-tools/email-inbox#tool-neverbounce) Free trial *Best for:* Bulk list cleaning and real-time checks on signup forms. Cleans email lists in bulk or in real time on your signup forms. Cuts bounces before you send. - [**Hunter**](https://learn.ynteractive.com/content/ai-tools/tool/hunter) Free plan *Best for:* Finding and verifying professional emails in one place. Find and verify professional email addresses for a company or person. Includes simple cold-email campaigns. - [**Snov.io**](https://learn.ynteractive.com/content/ai-tools/tool/snov-io) Free plan *Best for:* Verification inside an email and LinkedIn outreach tool. Finds leads, enriches them with verified emails and phone numbers and automates cold email and LinkedIn campaigns. Has a free plan that renews monthly with a small credit allowance. - [**Gmail with Gemini**](https://learn.ynteractive.com/content/ai-tools/tool/gmail-with-gemini) Free plan Gemini in Gmail summarizes long threads, drafts replies and finds details in your inbox. Pair it with filters and labels to triage mail automatically. - [**Signatoro**](https://learn.ynteractive.com/content/ai-tools/tool/signatoro) Free plan An email signature platform for people and AI agents: save your signature once, and your team, your automations and every AI agent you connect use the same one. Make and n8n fetch it with one HTTP step, and Zapier has a Get Signature step. The free plan includes the API, with a monthly limit. [All 26 AI email tools](https://learn.ynteractive.com/content/ai-tools/email-inbox) ## Frequently asked questions **What is ZeroBounce?** Email validation and deliverability testing so campaigns reach inboxes. Free monthly checks to start. ZeroBounce checks email lists one at a time, in bulk or through an API. It flags invalid, disposable and catch-all addresses and spam traps, and scores each valid contact on how likely a real person will see the message. Its deliverability tools test inbox placement, check SPF, DKIM and DMARC setup, and watch over 200 blacklists. **Who is ZeroBounce for?** ZeroBounce fits marketers, sales reps, email marketing managers and small business owners, and other office teams with the same job to do. **Is ZeroBounce free?** ZeroBounce has a free plan; paid plans add more usage or features. Plans change often, so check the official pricing page before you commit. **What are some alternatives to ZeroBounce?** Other AI email tools include no2bounce, NeverBounce, Hunter, Snov.io and Gmail with Gemini. **Is ZeroBounce safe for work data?** States SOC 2 Type 2 and ISO 27001 certification and GDPR, CCPA and HIPAA compliance. Says uploaded files are deleted automatically after 30 days. Check your own company’s rules, and use a business plan with training turned off for client data. ## “Listed on Stepthrough” badge Add this badge to the ZeroBounce website, press page or docs. It links to this page, so your visitors can see the listing. Copy the HTML ```text Listed on Stepthrough ``` Checked against ZeroBounce’s official site on October 20, 2026: [source 1](https://www.zerobounce.net), [source 2](https://www.zerobounce.net/security). Spotted something out of date? Email [rbreen@ynteractive.com](mailto:rbreen@ynteractive.com). Listings are free; [submit your AI tool](https://learn.ynteractive.com/content/ai-tools/submit). [The full AI tools directory](https://learn.ynteractive.com/content/ai-tools) · [Email & inbox](https://learn.ynteractive.com/content/ai-tools/email-inbox) · [Tool comparisons](https://learn.ynteractive.com/content/compare)